Stat113.01_Recitation_WKST_WEEK2.docx - STAT 113.01 Week 2...

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STAT 113.01 Week 2 Recitation - Data Collection 1. The data represent the age of world leaders on their day of inauguration. Find the five-number summary, and construct a boxplot for the data. Comment on the shape of the distribution. 48 64 58 62 56 49 61 47 52 46 55 50 55 63 48 a. The five-number summary is (Use ascending order.) 46 , 47, 48, 48 , 49, 50, 52, 55 , 55, 56, 58, 61 , 62,63, 64 46 , 48 , 55 , 61 , 64 , MIN Q1 M Q3 MAX b. Choose the correct boxplot of the data below. i, ii, or iii? i. ii. iii. c. Describe the shape of the distribution Roughly Symmetric
2. The following data represent the amount of time (in minutes) a random sample of eight students took to complete the online portion of an exam in a particular statistics course. Compute the mean, median, and mode time. 68.3, 73.8, 82.1, 112.5, 128.4, 97.4, 94.7, 119.4 = 776.6 / 8 = 97.075 a. Compute the mean exam time. Select the correct choice below and, if necessary, fill in the answer box to complete your choice i. The mean exam time is 97.08 (Round to two decimal places as needed.) ii. The mean does not exist.